CN105337350B - Onboard wireless charger - Google Patents
Onboard wireless charger Download PDFInfo
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- CN105337350B CN105337350B CN201510713743.8A CN201510713743A CN105337350B CN 105337350 B CN105337350 B CN 105337350B CN 201510713743 A CN201510713743 A CN 201510713743A CN 105337350 B CN105337350 B CN 105337350B
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Abstract
Present invention is disclosed a kind of onboard wireless charger, with the working face being obliquely installed, working face arranged beneath has main coil, the main coil is the charging equipment charging with secondary coil, main coil, secondary coil meet a wireless charging standard, and the size of working face and the position of main coil, when make it that the charging equipment is placed on working face, the overlapping area of secondary coil and main coil meets the requirement of wireless charging standard.As long as the present invention reaches that mobile phone can be placed on working face by setting inclined working face, limiting the size of working face and positioning position of the main coil in working face, the effect of effective charged area is just in all the time.
Description
Technical field
The present invention relates to vehicle-mounted auxiliary equipment, more specifically to a kind of onboard wireless charger.
Background technology
Electronic equipment is increasingly popularized, and the charging problems of electronic equipment are also increasingly protruded.With wireless charging technology
Development, it is also desirable to which automobile, which possesses, wireless charging capability.
The appearance of onboard wireless charging equipment meets current technology trend.Onboard wireless charging equipment is also required to meet
A certain wireless charging standard, to be used cooperatively with the charging equipment for also corresponding to the wireless charging standard.It is the most frequently used at present
Charging equipment is that wireless charging standard more universal in mobile phone, mobile phone is Qi wireless charging standards.
According to Qi wireless charging standards, main coil is arranged to three-winding form, and three coils are superimposed to form one approximately
In rectangular coil region.Secondary coil in mobile phone meets certain overlapping area requirement with main coil, with regard to that can be charged.
Secondary coil in usual mobile phone is the geometric center weight positioned at the intermediate region, the i.e. geometric center of secondary coil and mobile phone of mobile phone
It is folded.In the conventional technology, three-winding structure is also centrally arranged, i.e. three-winding on the working face (A faces) of wireless charging device
The geometric center of structure is overlapping with the geometric center in A faces.Then, the position-limit mechanism of price is provided with working face, this is spacing
Mechanism is used to limit position of the mobile phone on A faces so that mobile phone is in effective charged area all the time.
, it is necessary to the problem of considering driving safety for mobile unit, it is undesirable to which driver needs operation of diverting one's attention
These auxiliary equipments.Therefore, the presence of these position-limit mechanisms and improper.These position-limit mechanisms need driver distraction to operate,
Easily produce potential safety hazard.
The content of the invention
The present invention is directed to propose a kind of onboard wireless charger, size design and the cloth set of main coil by working face
When putting come so that mobile phone is placed on working face, all the time in effective chargeable range.
According to one embodiment of the invention, a kind of onboard wireless charger is proposed, with the working face being obliquely installed, work
Face arranged beneath has main coil, and the main coil is the charging equipment charging with secondary coil, and main coil, that secondary coil meets one is wireless
Rechargeable standard, and the size of working face and the position of main coil are when make it that the charging equipment is placed on working face, secondary coil and master
The overlapping area of coil meets the requirement of wireless charging standard.
In one embodiment, charging equipment is mobile phone, and wireless charging standard is below Qi wireless charging standards, working face
The main coil of arrangement is the three-winding structure for meeting Qi standards, and main coil plane is parallel with working face, and mobile phone is placed on working face
Side.
In one embodiment, the tilt angle alpha of working face meets α ＞ arctg μ, and wherein μ is face surface and mobile phone
Coefficient of friction between shell.
In one embodiment, tilt angle alpha meets 20 °<α<45°.
In one embodiment, the size of working face meets following conditions：
Width W meets W1≤W<L2, wherein W1 are the Breadth Maximum for the mobile phone for possessing Qi wireless charging functions, and L2 is to possess
The minimum length of the mobile phone of Qi wireless charging functions；
Length L meets L1≤L≤2 (l ' m+1/2L2), and wherein L1 is that the mobile phone for possessing Qi wireless charging functions is most greatly enhanced
Degree, L2 is the minimum length for the mobile phone for possessing Qi wireless charging functions, and l ' m=D-A ', wherein D are fixed values, to form three lines
The half of the main coil total length of coil structures, A ' is fixed value, is the half of secondary coil length.
In one embodiment, working face is rectangular, and width of the working face along rectangle is tilted.
In one embodiment, the position of main coil meets following conditions：
Form the axis of the main coil of three-winding structure in the longitudinal direction any in the longitudinal direction apart from working face
One side meets following conditions apart from J：
1/2L1≤J≤l ' m+1/2L2, wherein L1 are the maximum length for the mobile phone for possessing Qi wireless charging functions, and L2 is tool
The minimum length of the mobile phone of standby Qi wireless charging functions, l ' m=D-A ', wherein D are fixed values, to form the master of three-winding structure
The half of coil total length, A ' is fixed value, is the half of secondary coil length；
Form bottom of the axis apart from working face in the direction of the width of the main coil of three-winding structure in the direction of the width
Side apart from H meets following conditions：
1/2W1-lm≤H≤1/2W2+lm, wherein W1 are the Breadth Maximum for the mobile phone for possessing Qi wireless charging functions,
L2 is the minimum widith for the mobile phone for possessing Qi wireless charging functions, lm=A+B-C；Wherein A is fixed value, for main loop length
Half；B is variable value, is that towards on the direction on A faces base, the edge of secondary coil exceeds the distance at main coil edge, B value
Scope is less than the 1/3 of secondary coil width；C is fixed value, is the half of secondary coil width.
In one embodiment, there is aid mark on the surface of working face, aid mark show it is following at least within
One of：
Three-winding structure axis in the longitudinal direction, three-winding structure axis in the direction of the width or thirdly
The location of geometric center of loop construction.
In one embodiment, onboard wireless charger is provided with frame along the base of working face.
In one embodiment, onboard wireless charger is provided with frame along the outline of working face.
The present invention is by setting inclined working face, the size for limiting working face and positioning main coil in working face
As long as position reaches that mobile phone can be placed on working face, the effect of effective charged area is just in all the time.
Brief description of the drawings
The above and other feature of the present invention, property and advantage will pass through description with reference to the accompanying drawings and examples
And become apparent, identical reference represents identical feature all the time in the accompanying drawings, wherein：
Fig. 1 a disclose the dimensional parameters of main coil in Qi wireless charging standards.
Fig. 1 b disclose the arrangement of three-winding standard in Qi wireless charging standards.
Fig. 1 c disclose the dimensional parameters of secondary coil in Qi wireless charging standards.
Fig. 2 discloses the side structure schematic diagram of the onboard wireless charger according to one embodiment of the invention.
Fig. 3-Fig. 6 discloses the working face size and main line of the onboard wireless charger according to one embodiment of the invention
Enclose the calculation basis of position.
Embodiment
The onboard wireless charger of the present invention meets Qi wireless charging standards.The work that the onboard wireless charger charges at it
Make face, i.e. the arranged just beneath in A faces there are three coils, the size and arrangement of three coils are according to Qi wireless charging standards
Three-winding standard arrangement.
With reference to shown in Fig. 1 a and Fig. 1 b, the three-winding standard in Qi wireless charging standards is as follows.With reference to Fig. 1 a and following
Table 1, three coil dimensions, the homogeneous causes of the winding number of turn, three coils are located in charger, referred to as main coil.
Table 1
| Parameter | Identified in Fig. 1 a | Value |
| Outline length | dol | 53.2±0.5mm |
| Internal periphery length | dil | 27.5±0.5mm |
| Outline width | dow | 45.2±0.5mm |
| Internal periphery width | diw | 19.5±0.5mm |
| Thickness | dc | 1.5±0.5mm |
| Each layer of the number of turn | Nothing | 12 circles |
| The number of plies | Nothing | 1 layer |
Fig. 1 b are disclosed, and according to Qi wireless charging standards, the arrangement of three-winding is：With the reference coordinate shown in Fig. 1 b
It is that X/Y coordinate systems are defined, first coil C1 and the second coil C2 length direction is along X-axis, and tertiary coil C3 length direction is along Y
Axle, X-axis is orthogonal with Y-axis.First coil C1 is aligned with each other in the Y-axis direction with the second coil C2's, in the X-axis direction,
Spacing d between the axis of the axis of first coil C1 widths and the second coil C2 widthsooFor 49.2 ± 4mm.The
The axis of three-winding C3 widths is aligned with first coil C1, the second coil C2 length directions axis.In X-direction
On, the axis of tertiary coil C3 length directions is located at the axis and the second coil C2 widths of first coil C1 widths
Axis centre position.Between the axis of tertiary coil C3 length directions and the axis of first coil C1 widths away from
From doeFor 49.2 ± 4mm, between the axis of tertiary coil C3 length directions and the axis of the second coil C2 widths away from
From also be 49.2 ± 4mm.
Secondary coil is arranged in equipment to be charged, for coordinating with main coil, receives the electromagnetic energy of main coil output
For equipment charge to be charged.With reference to shown in Fig. 1 c, the secondary coil standard in Qi wireless charging standards is as follows.With reference to Fig. 1 c with
The table 2 stated,
Table 2
| Parameter | Identified in Fig. 1 c | Value |
| Outline length | d’ol | 44.25±0.25mm |
| Internal periphery length | d’il | 28.75±0.25mm |
| Outline width | d’ow | 30.25±0.25mm |
| Internal periphery width | d’iw | 14.75±0.25mm |
| Thickness | d’c | 0.6mm |
| Each layer of the number of turn | Nothing | 14 circles |
| The number of plies | Nothing | 1 layer |
According to Qi wireless charging standards, main coil needs to meet certain overlapping area with secondary coil, can be only achieved required
The charge efficiency wanted, if the overlapping area of main coil and secondary coil be not reaching to defined in Qi wireless charging standards will
Ask, then charge efficiency can be reduced.When the overlapping area of main coil and secondary coil is less than 2/3, charge efficiency just drops to 0.Cause
This, the outer profile size in A faces needs to meet following conditions, when mobile phone to be charged is placed on A faces, the by-pass in mobile phone
The overlapping area of circle and main coil is not less than 2/3.Herein 2/3 is defined by the area of secondary coil, i.e. secondary coil at least 2/3
Area is overlapped with the main coil of three-winding structure, to meet charge condition.
The first purpose of the onboard wireless charger of the present invention is to realize mobile phone " freely placing ", i.e., no matter mobile phone is with what
The mode of kind is placed on the working face of charger, and mobile phone can be charged without the position problems due to placement,
The overlapping area of main coil and secondary coil is too small to cause the problem of charging can not be carried out.
In order to realize " freely placing ", the present invention starts with from the following aspects：The size in A faces is rationally set so that hand
Machine can only be put on A faces with a direction, and mobile phone can not be placed into A faces with the direction of mistake；When mobile phone is placed to A
After on face, can be automatically moved to some fixation position, so be when no matter mobile phone puts A faces where, final hand
Machine can all be moved to a predetermined position.With regard to this, the present invention has carried out following design for A faces：
The working face of the charging of the onboard wireless charger of the present invention, i.e. A faces are slant setting.Fig. 2 is disclosed according to this
The side structure schematic diagram of the onboard wireless charger of one embodiment of invention.Because A faces are slant setting, therefore when mobile phone is put
When on A faces, the effect of gravity and frictional force can be received.As illustrated in fig. 2, it is assumed that mobile phone and the coefficient of friction in A faces are μ.A faces with
The angled α of horizontal plane, when angle [alpha] reaches certain value, mobile phone can be slided because of Action of Gravity Field along A planes.At this moment hand
The gravity G of machine is more than the frictional resistance f that mobile phone is subject on rubber plane along A in face of directed force F=mgsin α of mobile phone
=μm gcos α, i.e. mgsin α ＞ μm gcos α, calculate tg α ＞ μ.Therefore, as A faces inclined angle alpha ＞ arctg μ
When, mobile phone can overcome frictional force under gravity, slide into the bottom in A faces, to realize the function of positioning.Outside most of mobile phone
Shell is plastics or smooth metal, and the A facestocks material of onboard wireless charger is rubber.Friction coefficient μ is about 0.36, so A
Face inclined angle alpha would generally 20 ° of ＞.In view of the stability and security of traveling, A faces inclined angle alpha is generally also not more than 45 °.
The mobile phone that the A faces being obliquely installed are solved is automatically positioned problem on A faces, after mobile phone is put on A faces, can slide automatically
Move the bottom in A faces.It should be noted that in description given below and correlation computations, A faces are along its short side, i.e., along width
Direction, which exists, to be tilted.
Next the problem of also needing to solve the positioning of the outer profile size and main coil in A faces on A faces, to ensure hand
Machine can meet main coil on A faces and the area of secondary coil overlaps requirement.Collection possesses Qi wireless charging functions first
The appearance and size data of main flow mobile phone.In following explanations, in the market when cited example of size is proposed with the application
Main flow mobile phone size be reference frame, those skilled in the art it should be understood that, with the continuous renewal of mobile phone, main flow is received
The size of collection can also produce change, and protection scope of the present invention should be defined by disclosed design, without being limited to
Cited size.Those skilled in the art can be when the size of main flow mobile phone at that time updates according to the present invention's
It is related to the size that scheme updates wireless charger.Herein, in the mobile phone with wireless charging function, with maximum length
It is ZTE MAX, length is 164mm.That with Breadth Maximum is Nokia Lumia 1520, and width is 86mm.With minimum wide
Degree is IPONE 5, and width is 61mm.That with minimum length is IPHONE 4, and length is 125mm.Following example of size
In, by by taking above-mentioned maximum handset length L1, maximum handset width W1, minimum handset length L2 and minimum handset width W2 as an example
Carry out example.
When mobile phone is placed on A faces, it is necessary first to meet the requirement in direction：The length direction of mobile phone should be with A faces
Length direction is consistent.Current main flow mobile phone substantially all have close to rectangle outline, A faces be also it is generally rectangular shaped, therefore
Mobile phone is placed on A faces in the length direction mode consistent with A faces.Therefore, the width W in A faces needs to meet W >=W1, so that
The mobile phone that must have Breadth Maximum also can be smoothly put into.Meanwhile, W<L2, so may insure that mobile phone will not be with the direction of mistake
It is placed on A faces, if mobile phone is placed on A faces (the i.e. width in the length direction of mobile phone and A faces with the direction of mistake
Unanimously), then situation of the overlapping area less than 2/3 of the secondary coil and main coil in mobile phone can be caused so that mobile phone can not charge.
Because W<L2, so mobile phone can not be put into when being placed into the opposite way round on A faces.Main flow mobile phone in the market, it is long
Degree size is all higher than width dimensions, there is larger gap between W1 and L2, therefore temporarily do not consider W1>L2 situation.Then, A
The width W in face size is W1≤W<L2.
After foregoing terms and conditions is met, the characteristics of placement of the mobile phone on A faces has had been provided with following：Mobile phone
It is placed on A faces, the length direction of mobile phone is consistent with the length direction in A faces.Also, no matter mobile phone is placed on A faces
Where, mobile phone can all be snapped down to the bottom in A faces.Below, in addition it is also necessary to which the size to A faces is further limited, and right
Position of the main coil on A faces is positioned, to meet the overlapping area of secondary coil in mobile phone and main coil not less than 2/3
Condition.In the following description, the geometric center of secondary coil and the geometric center of mobile phone are overlapping.Because along its short side, i.e., A faces are
Tilted along width, therefore, when mobile phone is placed on A faces, keep with A faces identical direction, mobile phone be also short side (i.e.
Width, which exists, to be tilted).
Fig. 3-Fig. 6 discloses the working face size and main line of the onboard wireless charger according to one embodiment of the invention
Enclose the calculation basis of position.In the diagram shown in Fig. 3-Fig. 6, according to set reference frame, X ' Y '-coordinate system is tilted
It is that along X ' axles, the side on the left of X ' axles is that the side on the right side of high point, X ' axles is low spot.It is to be snapped down to when mobile phone is placed on A faces
The bottom in A faces, the i.e. right edge against the A faces of diagram.
On X ' directions, the base in the axis X2 of main coil and A faces (rightmost side side in the A faces shown in Fig. 3 and Fig. 4)
The distance between H should meet following conditions：When mobile phone is placed on A faces and is snapped down to A faces minimum point, secondary coil
The overlapping area of (mobile phone charging wire circle) and main coil (coil on wireless charging device) can not be less than 2/3.
With reference to shown in Fig. 3, in order to meet secondary coil (mobile phone charging wire circle) and the main coil (line on wireless charging device
Circle) overlapping area can not be less than 2/3 limitation requirement, the axis of the axis X1 of secondary coil and the three-winding structure of main coil
The distance between line X2 Im should meet following condition：
The distance between X1 and X2 (no matter X1 is partial to X2 which side), no more than one higher limit of Im, more than this
Higher limit can cause the overlapping area of secondary coil and main coil to be less than 2/3.With continued reference to accompanying drawing, Im can be calculated as follows
Lm=A+B-C；
Wherein A is fixed value, for the half of main loop length；B is variable value, is the by-pass towards on the direction on A faces base
The edge of circle exceeds the distance at main coil edge, and B span needs to be less than a maximum, and the maximum is that secondary coil is wide
The 1/3 of degree；C is fixed value, is the half of secondary coil width, and A, B, C value are respectively：
A=1/2dol, B (max)=1/3d ' ow, C=1/2d ' ow；
It can be calculated according to B (max) and obtain lm (max)：
Lm (max)=A+B (max)-C=1/2dol+1/3d ' ow-1/2d ' ow=1/253.2+1/330.25-1/
230.25=21.56 ± 0.25mm.
lm≤21.56±0.25mm。
After mobile phone is placed on A faces, in addition it is also necessary to consider limitation of the mobile phone own dimensions for mobile phone putting position：Have
After the mobile phone of minimum widith is put on A faces, the distance between axis X1 and main coil axis X2 of mobile phone (X1 from X2 to
The base skew in A faces) no more than Im.After mobile phone with Breadth Maximum is put on A faces, the axis X1 and main line of mobile phone
Enclose the distance between axis X2 (X1 is offset from X2 to the top margin in A faces) no more than Im.
Thus calculate and obtain, on X ' directions, main coil axis X2 is met apart from A faces base apart from H：
1/2·W1-lm≤H≤1/2·W2+lm；
Wherein, W1 is maximum handset width, and W2 is minimum handset width, with maximum handset width W1=86mm, minimum hand
Machine width degree W2=61mm is calculated.
H≤1/2W2+lm, in other words Hmax=1/2W2+lm (max)=61mm+ (21.56 ± 0.25mm).Fig. 3 takes off
Above-mentioned calculating process is shown.Using minimum handset width W2 as foundation, H maximum, i.e. higher limit are resulted in.
H >=1/2W1-lm, in other words Hmin=1/2W1-lm (max)=86mm- (21.56 ± 0.25mm).Fig. 4 takes off
Above-mentioned calculating process is shown.Using maximum handset width W1 as foundation, H minimum value, i.e. lower limit are resulted in.
The size L of A faces in the longitudinal direction needs to meet following requirement：L >=L1, i.e., more than maximum handset length.Phase
Answer, being needed apart from J of A surface sides side and main coil length direction axis meets J >=1/2L1, i.e. Jmin=1/2L1.
On Y ' directions, the distance between the axis Y2 of main coil and the side (side of either side) in A faces L should also
When meeting following conditions：When mobile phone is placed on A faces, (wireless charging is set secondary coil (mobile phone charging wire circle) with main coil
Standby upper coil) overlapping area can not be less than 2/3.
With reference to shown in Fig. 6, in order to meet secondary coil (mobile phone charging wire circle) and the main coil (line on wireless charging device
Circle) overlapping area can not be less than 2/3 limitation requirement, the axis of the axis Y1 of secondary coil and the three-winding structure of main coil
The distance between line Y2 I ' m should meet following condition：
The distance between Y1 and Y2 (no matter Y1 is partial to Y2 which side), no more than one higher limit of I ' m, more than this
Higher limit can cause the overlapping area of secondary coil and main coil to be less than 2/3.With continued reference to accompanying drawing, I ' m can be calculated as follows
L ' m=D-A '；
Wherein D is fixed value, for the half of main coil total length, that is, after the three main coils combination for forming three-winding structure
The half of total length on length direction.A ' is also fixed value, is the half of secondary coil length.D and A ' value is respectively：
D=1/2 (doo+dow), A '=1/2d'ol；
L ' m=1/2 (doo+dow) -1/2d'ol=1/2 (49.2 ± 4mm)+1/2 (45.2 ± 0.5mm) -1/
2 (44.25 ± 0.25mm)=(47.2 ± 2mm)-(22.125 ± 0.125m)=25.075 ± 2mm.
After mobile phone is placed on A faces, in addition it is also necessary to consider limitation of the mobile phone own dimensions for mobile phone putting position：Have
After the mobile phone of minimum length is put on A faces, the distance between axis Y1 and main coil axis Y2 of mobile phone (Y1 from Y2 to
The skew of any one side in A faces) no more than I ' m.
J≤l’m+1/2L2。
L1 is maximum handset length, and L2 is minimum handset length, and with maximum handset length L1=164mm, minimum handset is long
L2=125mm is spent to calculate.
J≤l ' m+1/2L2, in other words Jmax=l ' m+1/2L2=(25.075 ± 2mm)+1/2125mm.Fig. 6 is disclosed
Above-mentioned calculating process.Using minimum handset length L2 as foundation, L maximum, i.e. higher limit are resulted in.
J >=1/2L1, in other words Jmin=1/2L1=1/2164mm.Fig. 5 discloses above-mentioned calculating process.With maximum
Mobile phone length L1 is foundation, results in L minimum value, i.e. lower limit.
Then, the length direction axis Y2 of main coil is met apart from any one side in A faces apart from J：1/2L1≤
J≤l’m+1/2L2。
The size L of A faces length direction meets L1≤L≤2Jmax, i.e. L1≤L≤2 (l ' m+1/2L2).
In terms of comprehensive,
The working face of the onboard wireless charger of the present invention is slant setting, and tilt angle alpha meets α ＞ arctg μ, wherein μ
For the coefficient of friction between face surface and phone housing.Generally, 20 °<α<45°.Working face is tilted in the width direction.
The size of working face meets following conditions：
Width W meets W1≤W<L2, wherein L2 are the minimum length for the mobile phone for possessing Qi wireless charging functions.
Length L meets L1≤L≤2 (l ' m+1/2L2), and wherein L1 is that the mobile phone for possessing Qi wireless charging functions is most greatly enhanced
Degree, L2 is the minimum length for the mobile phone for possessing Qi wireless charging functions, l ' m=25.075 ± 2mm.
In working face arranged beneath main coil, main coil is three-winding structure, the size of main coil and the cloth of three-winding
The scheme of putting meets Qi standards.Three-winding is parallel with working face.
Wherein, the main coil axis in the longitudinal direction of three-winding structure is formed apart from working face in the longitudinal direction
Any one side (short side) meets following conditions apart from J：
1/2L1≤J≤l ' m+1/2L2, wherein L1 are the maximum length for the mobile phone for possessing Qi wireless charging functions, and L2 is tool
The minimum length of the mobile phone of standby Qi wireless charging functions, l ' m=25.075 ± 2mm.
Form bottom of the axis apart from working face in the direction of the width of the main coil of three-winding structure in the direction of the width
In when long (position relatively low) following conditions are met apart from H：
1/2W1-lm≤H≤1/2W2+lm, wherein W1 are the Breadth Maximum for the mobile phone for possessing Qi wireless charging functions,
L2 is the minimum widith for the mobile phone for possessing Qi wireless charging functions, lm≤21.56 ± 0.25mm.
Outline of the onboard wireless charger along working face can set frame with the scope of clear and definite outline.Due to vehicle-mounted
Wireless charger is slant setting, therefore the frame in the base position of working face is necessary, and the frame on other three sides is
Optionally.
In addition, on the surface of working face, can have aid mark, aid mark can show three-winding structure in length
The location of axis on direction, axis in the direction of the width or its geometric center.
The present invention is by setting inclined working face, the size for limiting working face and positioning main coil in working face
As long as position reaches that mobile phone can be placed on working face, the effect of effective charged area is just in all the time.
Above-described embodiment, which is available to, to be familiar with person in the art to realize or using the present invention, be familiar with this area
Personnel can make various modifications or change, thus this to above-described embodiment without departing from the present invention in the case of the inventive idea
The protection domain of invention is not limited by above-described embodiment, and should meet inventive features that claims mention most
On a large scale.
Claims (8)
1. a kind of onboard wireless charger, it is characterised in that with the working face being obliquely installed, working face arranged beneath has main line
Circle, the main coil is the charging equipment charging with secondary coil, and the main coil, secondary coil meet Qi wireless charging standards, and
When the size of the working face and the position of main coil make it that the charging equipment is placed on working face, the weight of secondary coil and main coil
Close the requirement that area meets Qi wireless charging standards；
The charging equipment is mobile phone, and the main coil of the working face arranged beneath is the three-winding for meeting Qi wireless charging standards
Structure, main coil plane is parallel with working face, and the mobile phone is placed in above working face；
The size of the working face meets following conditions：
Width W meets W1≤W<L2, wherein W1 are the Breadth Maximum for the mobile phone for possessing Qi wireless charging functions, L2 for possess Qi without
The minimum length of the mobile phone of line charge function；
Length L meets L1≤L≤2 (l ' m+1/2L2), and wherein L1 is the maximum length for the mobile phone for possessing Qi wireless charging functions,
L2 is the minimum length for the mobile phone for possessing Qi wireless charging functions, and l ' m=D-A ', wherein D are fixed values, to form three-winding knot
The half of the main coil total length of structure, A ' is fixed value, is the half of secondary coil length.
2. onboard wireless charger as claimed in claim 1, it is characterised in that the tilt angle alpha of the working face meets α ＞
Arctg μ, wherein μ are the coefficient of friction between face surface and phone housing.
3. onboard wireless charger as claimed in claim 2, it is characterised in that the tilt angle alpha meets 20 °<α<45°.
4. onboard wireless charger as claimed in claim 1, it is characterised in that the working face is rectangular, working face is along square
The width of shape is tilted.
5. onboard wireless charger as claimed in claim 4, it is characterised in that the position of the main coil meets following
Condition：
Formed the main coil axis in the longitudinal direction of three-winding structure apart from working face in the longitudinal direction any one
Side apart from J meets following conditions：
1/2L1≤J≤l ' m+1/2L2, wherein L1 are the maximum length for the mobile phone for possessing Qi wireless charging functions, and L2 is to possess Qi
The minimum length of the mobile phone of wireless charging function, wherein l ' m=D-A ', D are fixed values, to form the main coil of three-winding structure
The half of total length, A ' is fixed value, is the half of secondary coil length；
Form base of the axis apart from working face in the direction of the width of the main coil of three-winding structure in the direction of the width
Following conditions are met apart from H：
1/2W1-lm≤H≤1/2W2+lm, wherein W1 are the Breadth Maximum for the mobile phone for possessing Qi wireless charging functions, and W2 is
Possess the minimum widith of the mobile phone of Qi wireless charging functions, lm=A+B-C；Wherein A is fixed value, to form three-winding structure
The half of main coil width；B is variable value, is that towards on the direction on A faces base, the edge of secondary coil is beyond main coil edge
Distance, B span is less than the 1/3 of secondary coil width；C is fixed value, is the half of secondary coil width.
6. onboard wireless charger as claimed in claim 5, it is characterised in that there is aid mark on the surface of working face,
Aid mark shows at least one following：
Three-winding structure axis in the longitudinal direction, three-winding structure axis in the direction of the width or its three-winding
The location of geometric center of structure.
7. onboard wireless charger as claimed in claim 4, it is characterised in that the onboard wireless charger is along working face
Base is provided with frame.
8. onboard wireless charger as claimed in claim 7, it is characterised in that the onboard wireless charger is along working face
Outline is provided with frame.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510713743.8A CN105337350B (en) | 2015-10-28 | 2015-10-28 | Onboard wireless charger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510713743.8A CN105337350B (en) | 2015-10-28 | 2015-10-28 | Onboard wireless charger |
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| CN105337350A CN105337350A (en) | 2016-02-17 |
| CN105337350B true CN105337350B (en) | 2017-10-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050795A (en) * | 1989-10-02 | 1991-04-17 | 莫托罗拉公司 | Be applicable to the cell charger box of differently sized batteries |
| CN203850879U (en) * | 2014-05-15 | 2014-09-24 | 丰田自动车株式会社 | Vehicle-mounted wireless charger |
| CN104779655A (en) * | 2014-01-15 | 2015-07-15 | 鸿富锦精密工业（深圳）有限公司 | Vehicle-mounted wireless charging device |
| CN204633423U (en) * | 2015-06-05 | 2015-09-09 | 厦门新页科技有限公司 | Suspension type wireless charger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140077763A1 (en) * | 2012-09-14 | 2014-03-20 | Research In Motion Limited | Multi-orientation stand for a portable electronic device |
-
2015
- 2015-10-28 CN CN201510713743.8A patent/CN105337350B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050795A (en) * | 1989-10-02 | 1991-04-17 | 莫托罗拉公司 | Be applicable to the cell charger box of differently sized batteries |
| CN104779655A (en) * | 2014-01-15 | 2015-07-15 | 鸿富锦精密工业（深圳）有限公司 | Vehicle-mounted wireless charging device |
| CN203850879U (en) * | 2014-05-15 | 2014-09-24 | 丰田自动车株式会社 | Vehicle-mounted wireless charger |
| CN204633423U (en) * | 2015-06-05 | 2015-09-09 | 厦门新页科技有限公司 | Suspension type wireless charger |
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| Publication number | Publication date |
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| CN105337350A (en) | 2016-02-17 |
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Address after: Anting Jiading District Town, Shanghai City Road No. 123 in 201805 Applicant after: SAIC VOLKSWAGEN AUTOMOTIVE COMPANY LIMITED Address before: Anting Jiading District Town, Shanghai City Road No. 123 in 201805 Applicant before: Dazhang Automobile Co., Ltd., Shanghai |
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